Tattoo machine



FIG. 1 is a perspective view of a tattoo machine showing my new design;

FIG. 2 is a bottom view thereof;

FIG. 3 is a top view thereof;

FIG. 4 is a left side view thereof;

FIG. 5 is a right side view thereof;

FIG. 6 is a front view thereof; and,

FIG. 7 is a rear view thereof.

The broken lines shown in the figures are for the purpose of illustrating portions of the tattoo machine and form no part of the claimed design. 

CLAIM The ornamental design for a tattoo machine, as shown and described. 